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Machines Model HDM
are horizontal type universal hard bearing
balancing machines provided with Microprocessor
based measuring panel HDM-8500 for balancing
different shapes of rotors like rotors of
electrical machines, crankshafts, cylinders, gas
compressors, flywheels, turbine rotors, rotors
of centrifugal pumps and any other type of
rotors of rotating machines. |
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Dynamic Balancing Machines features a very simple operation.
The working cycle is fully automatic. From
safety point of view a double press push button
starts machine, measures and stores, the
unbalance values on DPMs for two planes
simultaneously and stop machine ( with brake if
machine is provided with electrical breaking
facility.) The measuring cycle general is less
than 10 seconds for normal rotors which can be
accelerated within 5 seconds. |
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To have smooth and gradual acceleration models
HDM - 3,000/- 7,000/- 10,000/- 20,000/-
are provided with slipring motors in order not
to have damage to drive couplings as well other
rotating parts in drive systems like gears etc.
The starting of these machines is done manually
by cutting resistances of starter in 4 to 5
steps. |
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key-board facility provided on measuring panel
for correct data feeding of rotor with 1 digit
accuracy for itsdimensions like A, B, C, R1 &
R2. Tolerance limits of both correction plans
i.e.
tl1 and tl2 can be fed, so
that when rotor is balanced within the limits
respective LEDs glow
up, indicating no further correction necessary.
For other details please refer 'Features of
Measuring panel HDM-8500'. |
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The usable length of machine is established
according to the longest roter to be balanced.
Extension beds can be supplied on request, which
can be dded to standard bed of machine. It is
also possible to install an additional bed ( Gap
bed ) with a pit between this bed and standard
bed of machine in order to balance rotors having
its outside diameter exceeding swing over
standard bed. Models HD-7,000- 10,000/ 20,000
are provided with fixed separate drives and
hence gap-bed design is not possible. |
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STANDARD FEATURES |
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Digital display for unbalance
indication |
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Amount and angle of unbalance for both planes
displayed on separate DPMs. Hence linear
accuracy is very goos as compared to analog
meter + /- 1 digit for amount and +/-1 degree
for angle. |
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Digital display for RPM indication |
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A DPM is provided to indicate balancing speed
continuously as a standard feature. |
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Auto Stop |
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No necessity to stop machine once started. It
stops automatically after stabilization of
unbalance results. |
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Simultaneous Indication |
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Amount and angle of unbalance in both planes
displayed simultaneously and remains displayed
(stored ) till next run. This totally eliminates
operation of plane selector and reduces
additional time for stabilization of readings in
other plane. |
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Key-Board |
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Data of rotor dimensions and balancing tolerance
i.e. values of A,B,C,R1,R2, t11,t12 are fed by
key operation . Hence accuracy of data feeding
is accurate up to 1 digit. |
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Tolerance Indicators |
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Separate LEDs are provided for both planes which
glow when unbalance is reduced within balancing
tolerance. |
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Auto Range |
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Depending upon whether unbalance amount is more
or less a respective course or fine range gets
automatically selected till rotor gets balanced
within tolerance limits, Multiplier operation is
totally eliminated |
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Data store |
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Data of various rotors can be stored against
respective rotor type nos. Hence no need of
measuring of rotor dimensions or rotor data
feeding when repeat balancing operation
required. Just call rotor type no. and machine
is ready for balancing. |
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Self Check |
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Panel is provided with ‘self-check’ mode which
checks proper functioning of digital displays,
LEDs is cyclic operation. This helps immediate
fault detection. |
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HDM-8500 |
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This is a microproceser based measuring panel
suitable for FIE Hard Bearing Balancing Machine |
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TECHNICAL SPECIFICATIONS |
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"FIE" HORIZONTAL TYPE UNIVERSAL HARD
BEARING BALANCING MACHINES |
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| MODELS |
UNIT |
HDM-10 |
HDM-30 |
HDM-50 |
HDM-100 |
HDM-300 |
HDM-650 |
HDM-1000 |
HDM-3000 |
HDM-7000 |
HDM-10000 |
HDM-20000 |
| Weight of rotor |
kg |
0.5-10 |
1-30 |
2-50 |
3-100 |
10-300 |
20-650 |
10-1,000 |
30-3,000 |
70-7,000 |
100-10,000 |
200-20,000 |
| Max. weight on each pedestal |
kg |
7.5 |
22.5 |
30 |
75 |
180 |
480 |
600 |
1,800 |
5,250 |
6,000 |
12,000 |
| Max. diameter of rotor over bed |
kg |
600 |
600 |
600 |
1,000 |
1,000 |
1,200 |
1,600 |
2000 |
2400 |
2400 |
3000 |
| Max. Distance measured from
coupling end to extreme bearing
center. |
mm |
480 |
480 |
1,100 |
1,350 |
1350 |
1650 |
1,650 |
2,400 |
3,300 |
3,300 |
3,200 |
| Min. Distance between Roller
bearing of pedestals |
mm |
75 |
75 |
75 |
90 |
110 |
300 |
350 |
500 |
560 |
560 |
660 |
| Rotor journal dia |
mm |
5-50 |
5-20 |
5-20 |
15-80 |
20-120 |
20-120 |
25-140 |
35-200 |
55-300 |
55-300 |
70-300 |
| Balancing speed (n) |
RPM |
1,000 |
700 |
700 |
600 |
500 |
350 |
300-600 |
250-500 |
200-400 |
200-400 |
200-400 |
| Power of drive motor |
HP |
0.33 |
0.75 |
0.75 |
0.15 |
3 |
5 |
7.5 |
20
Slipring |
30
Slipring |
40
Slipring |
60
Slipring |
| Acceleration Capability (GD2N2) |
kgm2n2 |
0.29x106 |
0.37x106 |
0.37x106 |
0.88x106 |
3.9x106 |
8.56x106 |
14.12x106 |
168x106 |
168x106 |
216x106 |
301x106 |
| Minimum unbalance mass measured |
g |
0.01 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
1 |
1 |
1 |
1 |
| Maximum unbalance mass measured |
kg |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
40 |
40 |
40 |
40 |
| Unbalance reduction ratio |
% |
95 |
95 |
95 |
95 |
95 |
95 |
95 |
95 |
95 |
95 |
95 |
| Minimum achievable unbalance per
Rotor Weight (for max. weight or
rotor) |
gmm/kg |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0.5 |
0. |
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